public JsonNetResult GetCreditsToDollarExchangeValue()
{
string creditsToDollarExchangeValueString = String.Empty;
#region (Plan A) Get data from Local Cache (We cache the exchange rate locally for 8 hours to decrease Core Service requests)
var exchangeRateCacheKey = "CreditsToDollarExchangeValue";
var cacheMinutes = 480;
var localCacheValue = System.Web.HttpRuntime.Cache.Get(exchangeRateCacheKey);
#endregion
if (localCacheValue == null)
{
//local cache is empty, get rate from Core Services
#region (Plan B) Get data from WCF
//If a failure occurs, or the redis cache is empty we get the user from the WCF service
var accountCommerceServiceClient = new AccountCommerceService.AccountCommerceServiceClient();
try
{
accountCommerceServiceClient.Open();
creditsToDollarExchangeValueString = accountCommerceServiceClient.GetDollarsToCreditsExchangeRate(1, Common.SharedClientKey).ToString();
//Close the connection
WCFManager.CloseConnection(accountCommerceServiceClient);
}
catch (Exception e)
{
#region Manage Exception
string exceptionMessage = e.Message.ToString();
var currentMethod = System.Reflection.MethodBase.GetCurrentMethod();
string currentMethodString = currentMethod.DeclaringType.FullName + "." + currentMethod.Name;
// Abort the connection & manage the exception
WCFManager.CloseConnection(accountCommerceServiceClient, exceptionMessage, currentMethodString);
#endregion
}
//Store data into local cache for 8 hours:
System.Web.HttpRuntime.Cache.Insert(exchangeRateCacheKey, creditsToDollarExchangeValueString, null, DateTime.Now.AddMinutes(cacheMinutes), Cache.NoSlidingExpiration, CacheItemPriority.Default, null);
#endregion
}
else
{
//convert local cache object to return value
creditsToDollarExchangeValueString = localCacheValue.ToString();
}
JsonNetResult jsonNetResult = new JsonNetResult();
jsonNetResult.Formatting = Newtonsoft.Json.Formatting.Indented;
jsonNetResult.SerializerSettings.DateTimeZoneHandling = DateTimeZoneHandling.Local; //<-- Convert UTC times to LocalTime
jsonNetResult.Data = creditsToDollarExchangeValueString;
return(jsonNetResult);
}
